Answers

• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022

  Sounds like the Datatable is initialized while hidden. Use columns.adjust() when the table is displayed so Datatables can recalculate the column widths. Similar to this Bootstrap tabs example.

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022 edited July 2022

  The column offset is due to

   scrollY: 400,
          scrollX: true,
          scrollCollapse: true,
  

  When I removed the scroll there is no problem of the column offset.

  But I want to keep the scroll. How can I implement column.adjust in my case?
• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022

  If the table is hidden when initialized you will use columns.adjust() after you show the table. I guess this would be in your select change event. If you need specific help please post a running test case showing the issue.
  https://datatables.net/manual/tech-notes/10#How-to-provide-a-test-case

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  I've made the test case here : live.datatables.net/suqayoxe/4/edit

  In the test case all columns is adjust.

  With the same code in my application the columns is not adjust.
• allan Posts: 63,498Questions: 1Answers: 10,471 Site admin

  July 2022 edited July 2022

  To confirm, you are saying that the example you linked to there works correctly, but in your application it isn't working?

  We'd need a link to a page showing the actual issue to be able to help diagnose the issue.

  Allan
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  Yes, the code in test case work correctly and it doesn't work in my application

  I don't know how I can share my page which is actually in local.

  In my page there is a error message
  
• rf1234 Posts: 2,991Questions: 87Answers: 421

  July 2022

  You don't seem to have jQuery installed. That explains the first two error message. So please install jQuery!

  That might also explain the third error. So I would recommend you install jQuery and then try again.
• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022

  The first error looks like you are loading jquery.datatables.js before jquery.js.

  The second error looks like you are loading index.js before jquery.js.

  The third error could be many things. We would need to see the problem in order to debug.

  I wonder if you are loading jquery.datatables.js and jquery.js more than once. Since you are getting those errors and you seem to be getting an initialized Datatable I suspect you have JS load order and duplicate issues.

  I don't know how I can share my page which is actually in local.

  If you can't provide the page then can you update the test case with enough of your environment to show the issue? Looks like you are using bootstrap but your test case doesn't have bootstrap.

  The problem could be the columns.adjust() is executed too quickly. Meaning it executes before the DOM is actually updated show the table. You might need to use a setTimeout function, like this thread to delay the API call. Instead of the 350 timeout value try 0 for the smallest delay.

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  @rf1234 jquery is already installed.
  

  @kthorngren
  I've updated the the test case with the my environnement
  live.datatables.net/suqayoxe/5/edit

  Really, the problem is appear when I added scroll.
• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022

  The test case doesn't run. You have removed all the JS includes like jquery.js and datatables.js. Please update the test case so it runs and shows the issue.

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  I've updated the test case here : live.datatables.net/suqayoxe/5/edit

  That is exactly the code that I have in my application.
  In this case the scroll is not take into account so it's it in my application.
  So, in the test case there is no offset of the columns
• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022

  I fix a lot of issues with your test case:

  1. Its loading datatables.js multiple time
  2. Its not loading bootstrap - I believe this is in your environment
  3. The table tag should have `style="width:100%;" to allow Datatables to calculate the table width
  4. Added the typical BS classes to the table tag so the selectors used for the DT init works, ie, $('#secondDt.table').dataTable({..)}
  5. Commented out the DT init statements at the top of the script so the one's with the configs, like scrolling, works.
  6. Commented out the ajax and serverSide options since these cause errors and don't work. You are using DOM sourced data in the test case.
  7. These events don't work:

         first.on('#one', function (e) {
                  $.fn.dataTable.tables({ visible: true, api: true }).columns.adjust();
              });
  

  Removed the event function and just left the call to columns.adjust. The columns.adjust() for table 2 is commented out so you can see the difference between working and not.

  Updated test case:
  http://live.datatables.net/suqayoxe/6/edit

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  Thank you to your all informations.
  So I applied all modifications and I have always the columns offset.
  It's a real mystery!!!
• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022 Answer ✓

  There might be a timing issue where the table isn't visible when the columns.adjust() is executed. Have you tried the setTimeout option I linked to in the thread above?

  I updated the example to show this for table 2. You can validate this is an issue with the console.log statement I added for table 1. If the output is 0 then the table is still hidden with columns.adjust() is executed. It should be 1.
  http://live.datatables.net/suqayoxe/7/edit

  If this doesn't work then we will need to see the problem.

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  In devTool console I obtained 1 and 2 so It's ok when I added setTimeout option for the table 2.

  Many thanks!!

  One last question :
  I've installed the DataTable in VStudio to add client side library
  

  In markup I add the section script and add

   @* <script src="~/lib/datatables/js/jquery.dataTables.min.js"></script>*@
        @*<script src="~/lib/datatables/js/dataTables.bootstrap4.min.js"></script>*@
  

  I don't understand why I can't uses the libreary locally and I have to use

  <script src="https://nightly.datatables.net/js/jquery.dataTables.js"></script>
        <script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
  
• kthorngren Posts: 21,336Questions: 26Answers: 4,951

  July 2022 edited July 2022

  I'm not familiar with VStudio but I would guess there is no limitation to using local files. Maybe the path ~/lib/datatables/js/jquery.dataTables.min.js is wrong. Using ~ seems odd to me since that is a shortcut to the logged in user's home directory. I suspect you need to provide a path that starts at the projects root. Not sure but is using @* ... *@ designation a comment? Maybe thats why they aren't loading.

  Kevin
• TerreTux Posts: 21Questions: 4Answers: 0

  July 2022

  yes it's a comment @*...*@

  Thanks to your help!!